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Comparative Study on Immune Function of the Head and Trunk Kidney in Rainbow Trout Responding to IHNV Infection.

Authors :
Sun, Ruhan
Wang, Qin
Huang, Zhenyu
Zhan, Mengting
Zhao, Zhangchun
Wang, Bingchao
Guo, Mengge
Yuan, Le
Shi, Zechao
Ouyang, Gang
Ji, Wei
Source :
Viruses (1999-4915). Dec2022, Vol. 14 Issue 12, p2663. 13p.
Publication Year :
2022

Abstract

A teleost's kidney was divided into head kidney and trunk kidney. The head kidney is an important lymphatic organ, while the trunk kidney mainly performs osmotic pressure regulation and excretion functions. Previous studies have shown that the teleost's head kidney exerts a strong immune response against pathogen invasion, while the mechanism of immune response in the trunk kidney is still rarely reported. Therefore, in this study, we established an Infectious hematopoietic necrosis virus (IHNV) immersion infection model to compare the similarities and differences of immune response mechanisms between the head kidney and trunk kidney against viral infection. The results showed that IHNV infection causes severe tissue damage and inflammatory reaction in the head and trunk kidney, triggers a series of interferon cascade reactions, and produces strong immune response. In addition, the transcriptome data showed that the head kidney and trunk kidney had similar immune response mechanisms, which showed that the NOD-like receptor signaling pathway and Toll-like receptor signaling pathway were activated. In conclusion, despite functional differentiation, the teleost's trunk kidney still has a strong immune response, especially the interferon-stimulated genes, which have stronger immune response in the trunk kidney than in the head kidney when responding to IHNV infection. This study contributes to a more comprehensive understanding of the teleost immune system and enriches the theory of kidney immunity in teleosts. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
19994915
Volume :
14
Issue :
12
Database :
Academic Search Index
Journal :
Viruses (1999-4915)
Publication Type :
Academic Journal
Accession number :
161037709
Full Text :
https://doi.org/10.3390/v14122663